If the cost of type I sugar is Rs. 40 per kg. and type II sugar is Rs. 60 per kg. If both type I and type II are mixed in a ratio of 3 : 7. Then the price per kg of mixture type sugar is :
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Rs. 54
The price of the mixture is the weighted average of the two prices, weighted by the quantities mixed:
\( \displaystyle \text{Price per kg}=\frac{3\times 40+7\times 60}{3+7} \)
\( \displaystyle =\frac{540}{10}=54 \)
So the mixture costs Rs. 54 per kg.